Feedeeick geinnell



(No Model.)

F. GRINNELL.

AUTOMATIC FIRE EXTINGUISHER.

No. 269,201. Patented Dec.19,1882'.

WITNESSESI INVENTORI fiazwk wba deflectors placed close to the outlets.

UNITED STATES PATENT CEErcE.

FREDERICK GRINNELL, OF PROVIDENCE, RHODE ISLAND.

AUTOMATIC FIRE-EXTINGUISH ER.

SPECIFICATION forming part of Letters Patent No. 269,201, dated December 19, 1882.

Application filed June 13,1881. (No model.) C

T 0 all 'LU/IODL tt may concern:

Be it known that I, FREDERICK GRINNELL, of the city and county of Providence, State of Rhode Island, have invented a new and usetul Improvement in Automatic Fire-Extinguishers; and I hereby declare that the following is a full, clear, and exact description of the same, reference being bad to the accompanying drawings, forming part of this specification.

This invention has reference to an improvement in the distributers of water of automatic fire-extinguishers; and it consists in providing a nipple or pipe with a cap secured by a solder composed of a material fusible at alow temperature, with a head having lateral openings, (from which the water is discharged,) and a deflector opposite each opening, so that the water discharged from each lateral opening will be deflected into fine spray and in all directions, as will be more fully set forth hereinal'ter.

Figure 1 is a view of my improved distributer, showing the deflectors secured by curved rods a'short distance from the head. Fig. 2 is a sectional view, showing the seal secured within the nipple, the lateral outlets, and the Fig. 3 is a top view of the device, showing four deflectors placed opposite four holes in the head.

In the drawings, a is a short piece of pipe provided on each end with a screw-thread, and known in theart as a nipple. It is provided near its center with a six-sided wrenchbearing, so that it can be readily screwed into.

any kind of pipe-fitting.

solder made of materials fusible at alowtelnper-ature, so that when the nipple is secured to a system of pipes by which water is supplied to all parts of a building, and the temperature of the place where the nipple is secured is raised above the temperature at which the solder melts-say at irom 120 to 160 Fahrenheitthe melting of the solder will release the cap and the water will rush out of the pipe.

0 is a head secured by a screw-thread t0 the nipple a. It is provided with two, three, or more lateral outlets, dd, of such diameter that the area ofthem all combined is not more than cover and protect a fixed area of the ceiling,

and to throw the test of the water equally over the largest area on the'floor that can be thor oughly wetted down by each extinguisher. My present device may be constructed to throw the water into every portion of a room, so that such rooms-as a picker-room in acotton-milL-may be thoroughly protected, and in such a room the deflectors should be of such form that the water will be thrown with the best effect on the parts of the room most liable to be on fire, where a fire will burn most rapidly, or where the tire can most readily communicate with other parts of the building. By adapting the form, angles, or axes of the deflectors to the conditions, any room can be protected against fire, so, that a disastrous fire will be an impossibility.

ff are the rods by which the deflectors are secured and held in place against the force of theimpinging water. The deflectors may, however, be secured in any other convenient manner.

Having thus described myii1vention,Iclaim as new and desireto secure by Letters Patent 1. An automatic fire-extinguisher provided with a seal secured by a solder fusible at a low temperature, a head provided with lateral outlets, and deflectors placed in front of each outlet, constructed to distribute the water, as described.

2. In an automatic lire-extinguisher, the combination, with the nipple a and seal 1), of the head 0, provided with lateral outlets d d, and the deflectors e e, constructed to deflect the water, as described.

FREDERICK GRINNELL.

Witnesses:

J. A. MILLER, Jr., WM. L. COOP. 

